豚 血漿 蛋白質의 給與가 離乳仔豚의 發育에 미치는 影響

다국어 초록 (Multilingual Abstract)

In order to investigate the effect of feeding spray dried porcine plasma(SDPP) on the performance of piglets weaned at 21 days of age a feeding trial was conducted 5 weeks. Dry skim milk(DSM) or soy protein concentrate(SPC) were used as a comparative purpose.
Experimental animals were devided into three groups of 15 piglets each, 3 treatments x 3 replicate x 5 animals, and fed either, DSM, SDPP or SPC at a 10% level during the Phase I of initial two weeks after weaning and at a 5% level during the following three weeks. Results obtained are as follows,
1. Average daily gain of piglets fed SDPP was 0.16 kg/day during Phase I and 0.35 kg/day during the Phase II, which were significantly higher than the other(P<.05). Average daily gain of these piglets during whole period was 0.27 kg/day that was about 35% higher than that of piglets fed DSM or SPC(P<.05). There were no difference in growth rate between piglets fed DSM and those fed SPC.
2. Average daily feed intake of piglets were 0.23, 0.60, and 0.45 kg/day, respectively for phase I, phase II, and whole period, and these were significantly higher than those of piglets fed DSM and SPC. Averiage daily feed intake of piglets fed DSM and SPC during whole period were 0.38 and 0.36 kg/day.
3. Feed conversion rate of piglets fed SDPP was also the best among treatments(P<.05). During the entire period those were 1.66, 1.79 and 1.91, respectively for SDPP, SPC, and, DSM
4. The state of feces was estimated by giving value 1, for normal firm, 2 for soft and 3 for watery feces to evaluate the incidence of diarrhea. as indicated by the value 7.3 for SDPP, 16.1 for DSM and 20.0 for SPC, piglets fed SDPP showed the lowest incidence of soft or watery feces(P<.05).
5. Blood serum IgG level was coincidentally as the height of villus of small intestine, decreased at two weeks after weaning which was then increased afterward. There were no sigificant difference in serum IgG or IgM among treaments.
6. The height of villus of small intestine was naturally decreased at two weeks after weaning and then recovered at the end of feeding trial regaredless of treatments. The average height was the highest for piglets fed SDPP and the their shape were also very normal for SDPP.
In conclusion from reasults of this experiment it appears that SDPP stimulates the development of villus for small intestine especially when blood serum IgG is decreased at about two weeks after weaning, and thereby decrease the incidence of diarrhea, which then promotes feed intake, feed utilization and growth of early weaned piglets. However, it is clear that how these factors are correlated to come up with a favorable performance of piglets.

목차 (Table of Contents)

• 목차
• Summary
• I. 서론 = 1
• II. 연구사 = 3
• 1. 스프레이 건조 돼지 혈장 = 3
• 2. 농축 대두단백 = 7
• 3. 혈청내 면역물질 함량 = 8
• 4. 소장의 성상 = 10
• III 재료 및 방법 = 14
• 1. 시험설계 = 14
• 2. 시험기간 및 장소 = 15
• 3. 공시동물 = 15
• 4. 시험사료 = 15
• 5. 사양관리 = 18
• 6. 조사항목 및 방법 = 18
• 1) 체중 = 18
• 2) 사료섭취량 = 18
• 3) 설사발생 빈도 = 18
• 4) 혈청내 면역물질 함량 = 19
• 5) 소장의 융모 변화 = 19
• 6) 통계분석 = 19
• IV. 결과 및 고찰 = 20
• 1. 증체량 = 20
• 2. 사료섭취 및 이용 = 21
• 3. 설사발생 빈도 = 24
• 4. 혈청내 면역물질 함량 변화 = 26
• 5. 소장의 융모높이 변화 = 2
• 적요 = 31
• V. 인용문헌 = 34